Trolley-controlling device.



PATBNTED FEB. 5, 1907.

J. & H. LE R. DALE. TROLLEY CONTROLLING DEVICE.

APPLICATION FILED JULY9, 1906.

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APPLIOATIOK FILED JULY9, I906.

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JONATHAN DALE, OF KIN STON, NORTH CAROLINA, AND HARVEY LE ROY DALE, OFNEWPORT NEWS, VIRGINIA.

TROLLEY-CONTROLLING DEVICE.

Specification of Letters Patent.

Patented Feb. 5, 1 907.

Application filed July 9,1906. Serial No. 325,371.

To a/Z'Z whom it may cancer/1,:

Be it known that we, JONATHAN DALE and HARVEY LE ROY DALE, citizens ofthe United States, residing, respectively, at Iiinston, in the county ofLenoir and State of North Carolina, and Newport News, in the county ofWarwick and State of Virginia, have invented certain new and usefulImprovements in TrolleyControlling Devices, of which the following is aspecification.

Our invention pertains to improvements in trolleys for electric railwaysgenerally, more especially controlling devices therefor. Its object isto provide for automatically controlling the action or movement of thetrolley in event of the derailment of its wheel or pulley and to do thisin a simple and of fective manner.

Said invention consists of certain struc tural features orinstrumentalities substantially as hereinafter fully disclosed, andspecif ically pointed out by the claims.

In the accompanying drawings, illustrating the preferred embodiment ofour invention, Figure 1 is a plan view thereof. Fig. 2 is a front endelevation of the same. Fig. 3 is a vertical section produced upon theline A B, and Fig. 1 is a detailed side view of a ratchet and pawlemployed in connection with a clutch-faced collar fixed upon the shaftof the trolley-pole line-winding drum.

In carrying out our invention we arrange the several constituent partsor instrumentalities thereof in a suitable inclos'ure or casing 1,fastened, say, to the end of the car directly under the overhangingportion of the car-roof.

Carried by and slidable upon the shaft 2 is the usual drum 3, having afeathered or spline connection therewith, as indicated, and around whichis coiled or wound a number of times the line 4, connected to thetrolley-pole (not shown) for the convenient shifting of the latter, aswell understood.

A spring 5, preferably of the coiled type and having one end secured tothe inclosure or casing 1, delivers its stress or tension to the shaft2. carrying the drum 3, and is ell'ective to provide for the rewindingof the coils or layers of the rope or line 41 upon said drum forautomatically compensating the usual slack of the line as the trolley ismanipulated or shifted by the carman or conductor. To one side of saiddrum is fixed a collar 6, having, in addition to an annular groove 7,the purpose of which will presently be apparent, a clutch face orsurface S, and opposed to said clutch-face 1.0 is a second collar 9,sleeved upon the shaft 2 and to which latter collar is delivered thestress or tension of a spring 1 1, having a fixed connection with theinclosure 1, the purpose of which will also be presently seen.

A centrally-fulcrumcd shipping-lever 12, equipped with a stud orprojection a, has the prongs of its bifurcated end provided withinward-extending studs or projections entering or engaging the annulargroove 7 of the collar 6 and its opposite end. engaged by and receivedbetween prongs upon the lower end of the vertical arm of a bell-cranklever 13, suitably fulcrumed in position. The horizontal arm of thelever or bell-crank 13 has an elongated slot 14 in its free end portion,the latter standing directly above the drum 3, and through said slotpasses the trolleypole-n1anipnlating line 4, said line having a ball 15or knot thereon effective to engage and elevate said end of lever, aspresently seen.

A ratchet-pinion 16 is secured laterally to the collar 9 and engaged orretained in initial position by a dog or pawl 17, suitably pivoted inposition for initially holding said pinion, together with said collar,against rotation by the recoil action of the stressed or tensionedspring 11.

It is noted that while the normal spring action of the drum 3 willcon'ipensate the usual slack in the trolley-pole-manipulating line whenreleased from the pull of the conductor after engaging the wheel orpulley'of the trolley with the overhead wire or track, yet in event ofthe derailment of said wheel or pulley the upward thrust which wouldthus be imparted to the trolley-pole would not be controlled by thespring tension of said drum, which would be necessary to preventinvolvement or contact of the pole with the wires. In such aneinergency, however, in the use of our invention the upward movement ofthe trolley-pole, carrying with it, of course, the line 4, will engagethe ball or knot 15 with and swing the lever 13, which will move thelever 12 so as to bring the clutch-faces S and 10 into initialengagement and cause the stud or projection a to engage and lift the dogor pawl 17, disengag- ICC ing it from the ratchet 16. The recoil actionof the stressed spring 11 will be thus transmitted to the drum 3 andcompensate the additional slack in the pole-manipulating line or rope.The parts may be readily restored to initial position manually bysuitably retracting the pawl or stud a of the lever 12 from the dog orpawl 17, when the latter will by gravity reengage the ratchetpinion 16and by rewinding or stressing the spring 11 by suitably actuating theratchetequipped sleeve 10, as is apparent.

The lever 13 has one end initially resting in an opening in theinclosure 1, as at 18, to permit of the actuation of the device manuallywhen desired.

It is noted that any minor structural changes as related to the exactdetails and arrangement of the parts may be made with out departing fromthe spirit of our invention.

We clain1 .1. A device of the character described, comprising aspring-actuated drum for initially controlling thetrolley-polenianipulat ing line, a lever actuated by said line, a secondlever operated by the aforesaid lever, itself adapted to iinp art asliding movement to said druin, a spring-actuated collar arranged uponthe shaft of said drum and effective for imparting additional springaction to said drutn, and a dog-and-ratchet retaining means for saidcollar said lever having an offset or stud for tripping saidcollar-retaining means.

2. A device of the character described, comprising a spring-actuateddrum for initially controlling the trolley-pole-inanipulating lineprovided with a collar having a clutch-face, a lever actuated by saidline, a shipping-lever actuated by the aforesaid lever and provided withan offset or stud, a spring-operated collar arranged upon the shaft ofsaid drum and having a clutch-face, said clutch-faces adapted for mutualengagement, a ratchet-pinion attached to the latter collar, and a pawlor dog engaging said ratchet, said shipping-lever having its offset orstud engaging or tripping said dog.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing Witnesses.

JONATHAN DALE HARVEY LE ROY DALE. Witnesses as to Jonathan Dale:

J. H. DAWSON, I. T. HASKINs. Witnesses as to H. L. Dale:

WV. D. ARE, L. P. McCLENNY.

